TVA Seasonal TOU (11/11/2015)

Transcription

1 TVA Seasonal TOU 2015 (11/11/2015) IMPORTANT: Bill calculation and programming is different from TOU and TDHUD products billed prior to October If rates used to bill TOU prior to October 2015 will now be used to bill the new TOU structure, changes MUST be made for rates, account and meter to match the examples below. Overview: This TOU billing structure is effective for TVA TOU accounts >5000 KW for usage as of October There are three (3) billing seasons: Summer: June - September Winter: December - March Transition: October November and April - May Documentation for parameter settings and calculation type are at the end of this document. Elements required to bill these accounts are provided to the utility by TVA with a.bxd file. TVAVPIUP populates the tables with the necessary data. TOU bills the following elements of demand (kw) and energy (kwh) which populate Energy. The values marked (*) are populated by TVAVPIUP into UPN tables from the TVA.bxd file: Customer Charge Administrative Charge Onpeak KW * Maximum KW KW in Excess of Contract KW Onpeak KWH* Offpeak KWH First 200 HUD* Offpeak KWH Next 200 HUD* Offpeak KWH Over 400 HUD* Offpeak Minimum KWH * (If Applicable) Facilities Rental Equipment Rental Reactive kw (Leading/Lagging Kvar)* (Note: KW to be used in reactive charge calculation is provided) Fuel is also billed, but is not a component of Energy.

2 Bill Presentation: Arista will have the capability to produce an itemized bill for TOU accounts. Customization is available if preferred, and Arista will determine applicable charges There are some TVA utilities that prefer to generate their own customized bill for TOU customers. Customer Charge and Administrative Charge: Customer Charge is populated in the Rate Control File as Connect Charge: The Administrative Charge is populated in the Special Charges tab as Investment: SEDC Page 2

3 KW and KWH Charges: Rate Schedule tab on the Rate Control File rate is set up with four rates using Registers 1 through 4. Register 1 Rate will contain the billing values for: Customer Charge Onpeak KW Onpeak KWH Onpeak Fuel Excess Demand (if applicable) Register 2 Rate will contain the billing values for: Maximum KW Offpeak KWH First 200 HUD (+ Minimum Offpeak KWH>Metered Offpeak KWH, if applicable) Register 3 Rate will contain the billing values for: Offpeak KWH Next 200 HUD Register 4 Rate will contain the billing values for: Offpeak KWH Over 400 HUD SEDC Page 3

4 Offpeak Minimum KWH. If the total of Offpeak HUD KWH is less than Minimum Offpeak KWH, then the excess of Offpeak KWH>Metered Offpeak KWH is billed at the rate of first 200 HUD. (Register 2) Example: HUD Metered HUD Metered HUD Billed Offpeak HUD first Offpeak HUD next Offpeak HUD over Total HUD Metered Minimum Offpeak KWH KWH will be billed at the rate of first 200 HUD. Which is the sum of: Offpeak HUD first Minimum Offpeak KWH minus Total Metered Offpeak KWH ( ) Special Note: If the minimum offpeak KWH is used for billing, only the metered HUD kwh will be charged fuel cost. Reactive Charges: KW subject to reactive charge is pulled directly from.bxd file. Lagging charges=[kw (from.bxd file) x Rateparm7(1)] Leading charges = [KW (from.bxd file) x Rateparm3(7)] Account Settings: Detail tab Appl Nbr: TVA assigned account number. TVAVPIUP uses this value to correspond to.bxd file values. SEDC Page 4

5 Demand tab Demand: TVA Variable: Contract Demand: Delivery Point: TOD Demand STOU Register 1 is Onpeak Contract Demand Register 2 is Offpeak Contract Demand Delivery Point: If the TOU account has an IP Credit: 5IP = IP = 130 (Note: Values must be set up in Description File) Meter Settings: Demand: TOD Demand K Reg: 4 D Reg: 2 SEDC Page 5

6 Facilities Rental Charges: Billed with one of two (2) different methods: Special Charges tab\rental for a flat fee. Rental can be calculated based on the Delivery Voltage in CODE3 of LOCINFODETL. o If the value in CODE3 is between 46 and 161, the value will be multiplied times the highest demand in the latest 11 months or the contract demand, whichever is highest. o If the value in CODE3 is greater than 0 but less than 46, and the value in CP 3(18)=0,.93 cents will be multiplied times the first 10,000 KW block of Demand and.73 cents multiplied times the remaining Demand. If the value of CP 3(18) is greater than 0, then multiply the value in CP 3(18) times the first 10,000 KW block and.73 cents multiplied times the remaining Demand. In the following example, Rental will be $9,300: Contract Demand x.93 = $9,300 SEDC Page 6

7 Control File: COOPPARMD(138)=1 COOPPARMD(152)=O (Alpha character) SEDC Page 7

8 Rate Control File: Register 1 Rate: General Rate Info: Customer Charge (Connect Charge) Onpeak Fuel (Fuel Charge) Demand Type = 3 (TOD Demand) Rate Parms (1): RP 1(18)=5 RP 1(23)=0 (Upon initial setup. Value can change when Arista itemized template in use.) RP 1(26)=1 RP 1(54)=1 or 2 (if RP 7(16) is used to calculate Outdoor Light fuel charge.) RP 3(7)=Leading Kvar charge RP 7(1)=Lagging Kvar charge RP 7(16)=Outdoor Light Fuel Charge (if being used by the utility). SEDC Page 8

9 Register 1 Rate (continued) Rate Parms (2): RP 1(86)=1 Rate Parms (3) tab has no required parameter settings. Usage Steps: Onpeak KWH KW Steps: Onpeak KW Onpeak Excess Demand SEDC Page 9

10 KW Demand Ratchet: Register 1 Rate (continued) Rate Schedule: SEDC Page 10

11 Rate Control File Example: Register 2 Rate: General Rate Info: Demand Type = 3 (TOD Demand) Rate Parms (1): RP 1(18)=5 RP 1(23)=0 (Upon initial setup. Value can change when Arista itemized template in use.) RP 1(26)=1 SEDC Page 11

12 Register 2 Rate (continued) Rate Parms (2): RP 1(86)=1 Rate Parm (3) tab has no required parameter settings. Usage Steps: Offpeak KWH First 200 HUD KW Steps: Maximum KW SEDC Page 12

13 Offpeak KW Demand Ratchet: SEDC Page 13

14 Register 3 Rate: General Rate Info: Demand Type = 2 (TOU Not Demand) Rate Parms (1): RP 1(18)=5 RP 1(23)=0 (Upon initial setup. Value can change when Arista itemized template in use.) RP 1(26)=1 SEDC Page 14

15 Register 3 Rate (continued) Rate Parms (2): RP 1(86)=1 Rate Parms (3) tab has no required parameter settings. Usage Steps: Offpeak KWH Next 200 HUD SEDC Page 15

16 Register 4 Rate: General Rate Info: Demand Type = 2 (TOU not Demand) Rate Parms (1): RP 1(18)=5 RP 1(23)=0 (Upon initial setup. Value can change when Arista itemized template in use.) RP 1(26)=1 SEDC Page 16

17 Register 4 Rate (continued) Rate Parms (2): RP 1(86)=1 Rate Parms (3) tab has no required parameter settings. Usage Steps: Offpeak KWH Over 400 HUD SEDC Page 17

18 Sample Bill Calculation: SEDC Page 18

19 MINUTES MINUTES KW RATE AVAILABLE/ IN PERIOD ON-PEAK DEMAND 9,704 $8.72 7,200 7,200 $84, MAX DEMAND 9,806 $ ,440 37,440 $20, EXCESS 0 $ ,640 44,640 $0.00 KWH* RATE ON-PEAK ENERGY 1,119,507 $ $55, OFF-PEAK Block 1 1,627,258 $ $45, OFF-PEAK Block 2 1,627,258 $ $4, OFF-PEAK Block 3 2,555,638 $ $1, MINIMUM ENERGY > METERED 0 $ $0.00 CUSTOMER CHARGE $1, ADMIN FEES $ SEDC Page 19

20 Parameter and Calc Type Documentation as of October 2015 COOPPARMD(138) TOD USAGE UPDATE INDICATOR This parameter controls the value of KWH in the BILLHISTDETL, when TOD Accounts are billed. 1 = Updates the D03 record, positions for Total KWH used in Fuel Calculations and the D13 record for History records to produce the KWH usage graphs COOPPARMX(152) BILLED DEMAND CALCULATION O = Power Factor is calculated as follows: 60 Divide actual demandby kva. Multiply (A) by 100. DEMANDHISTDETL.MISCINFO6 is updated with the calculation value. This value is not used in the bill calculation. RATEPARM1(18) TVA SPECIAL RACHET 5=Calculate Measured and Billed Demand for 1 st two registers. For On-Peak billing demand, billprog will compare CONTNBR (Register 1 Contract Demand) to the highest BILLEDDEMAND in DEMANDHISTDETL for the preceding 12 months to determine the greater of the two. The greater of the two will be Ratcheted per the following table: Compare the ratched value from above to the Current DEMANDUSAGE (billtype 9 record) in DEMANDHISTDETL. The greater of the two will update MEASUREDDMD and BILLEDDEMAND in DEMANDHISTDETL. For Off-Peak billing demand, billprog will compare CONTDMD2 (Register 2 Contract Demand) to the highest TODBILLDDMD in TODRECTYPE= 2 in TODDMDHISTDETL, for the preceding 12 months to determine the greater of the two. The greater of the two will be Ratcheted per the following table: SEDC Page 20

21 Compare the Ratched value from above to the Current TODDMDUSAGE in TODRECTYPE= 2 of the bill-type 9 record and update TODDMDHISTDETL.TODMEASUREDMD where TODRECTYPE = 2. Next, compare the DEMANDHISTDETL.MEASUREDDMD to TODDMDHISTDETL.TODMEASUDMD where TODRECTYPE = 2 to determine the greater value and update TODDMDHISTDETL.TODBILLDMD where TODRECTYPE = 2 (which is the maximum demand for register 2.) SEDC Page 21

22 RATEPARM1(23) ITEMIZED BILLS 1 = MBRSEPMSTR.CODE1 is used. If the parameter is set to 1 and CODE1 = 90, an Itemized Bill is produced. 2 = MBRSEPMSTR.CODE2 is used. If the parameter is set to 2 and CODE2 = 90, an Itemized Bill is produced. 3 = MBRSEPMSTR.CODE3 is used. If the parameter is set to 3 and CODE3 = 90, an Itemized Bill is produced. RATEPARM 1(26) TVA BILL CALCULATION FOR BILLED DEMAND OVER CONTRACT DEMAND 1 = (TVA) If BILLEDDEMAND is greater than the value in RATEPARM7(9) or DEMANDDETL.CONTDEMAND, subtract the higher of RATEPARM7(9) or DEMANDDETL.CONTDEMAND from BILLEDDEMAND giving EXCESS-DEMAND. The EXCESS- DEMAND is multiplied by the charge in KWSTEP-3, and the resulting value is added to DEMANDAMT and to ENERGY. Update per WO 73759: If DEMANDDETL.ESPFLAG= 8 or 9 and rateparm1(26)=1 and if DEMANDHISTDETL.TODDEMANDUSAGE_001 > DEMANDDETL.CONTDMD2 or if RATEPARM7(9) >0, then Billprog will take the difference and bill the excess (TODDEMANDUSAGE_001 over CONTDMD2) and use this value to calculate the excess demand charge. DEMANDDETL.CONTDMD = 2000 TODDEMANDUSAGE_001=2500 Excess demand = 500 Excess demand charge = 500 * the charge in KWSTEP3 If MBRSEPMSTR.CODE1-3 = 90, update D32 position with the value from DEMANDDETL.CONTDMD DEMANDHISTDETL.TODDEMANDUSAGE_001, update D33 position with the value from KWSTEP3 of the rate and update D33 position with the excess demand charge from (DEMANDDETL.CONTDMD DEMANDHISTDETL.DEMANDUSAGE_001 * KWSTEP3). If MBRSEPMSTR.CODE1-3 not equal to 90, update energy D03 position with the value from the excess demand charges from both ONPEAK and OFFPEAK demand. RATEPARM1(54) YARD LIGHT FUEL FLAG 0 = Calculate yard light fuel as now. 1 = And yard lights exist and RATEPARM7(16) >0 will be the fuel factor and the calculated value will be a debit. 2 = And yard lights exist and RATEPARM7(16) >0 will be the fuel factor and the calculated value will be a credit. STATPARM 22=4 must be used for this value to work. RATEPARM3(7) - FLEXIBLE REACTIVE DEMAND SEDC Page 22

23 If the value of RATEPARM3(7) is greater than zero and the value of ESPDETL.LEADkVAR is less than zero, the value of RATEPARM3(7) will be used to calculate FLEXIBLE REACTIVE DEMAND as follows: ESPDETL.LEADkVAR x (-1 x RATEPARM3(7)) = ESPDETL.LEADkVARAMT (assume 2 decimal positions: 9V99). Positions of the D04 record are updated with the value of RATEPARM3(7). (TVA) RATEPARM7(1) - FLEXIBLE TVA REACTIVE CHARGE FACTOR (NORTH GA) If the Calc Type in the Rate equals 11, an additional Reactive Charge is calculated. This charge is considered to be separate from the normal Demand Charges, and is calculated regardless of KW Usage or Contract Demand. ENERGY is updated in the file and on the bill. The charge is calculated as follows: (If charge is less than 0, no charge is added to ENERGY.) 1. Calculate the square root of Actual kva squared minus Billed Demand squared. 2. Multiply Actual Demand by.33 and subtract this value from the value in (1). 3. Multiply the result in (2) by the value of RATEPARM7(1) defined as 9(2)v9(5). For example, if the keyed value is the value to be used is ALSO If RATEPARM7(1) is greater than zero, the Calc Type of the Rate is 11 and the ESPDETL.UNSCHESP is greater than zero, the calculation of Flexible Reactive Demand occurs as follows: (ESPDETL.UNSCHESP (0.33 x ESPDETL.HIKW)) x (RATEPARM7(1)) = FLEXIBLE REACTIVE DEMAND (Assume 5 decimal positions: 9(2)v9(5) and Calc Type 11 will also use the RATEPARM7(1) value in the calculation of Reactive Demand). Positions of the D04 record are updated with the value of RATEPARM7(1). RATEPARM1(86)= Energy Details 1 = Energy Details for OPP Rate. This rate parameter, when set, will change the normal reporting of ENERGYDETL records. The energy charge and energy usage for register 3 through register 5 will be combined into RECORD TYPE =7. This will allow the energy to be displayed with register 3 instead of rolled into the Miscellaneous field on the Energy details. COOPFIELD3(18) FACILITY RENTAL PERCENT COOPFIELD3(18) = 0 Calculate facilities rental as normal. If COOPPFIELD3(18) is greater than zero, the value in this field will be multiplied times the first 10,000kw block and.73 cents times all that is left. SEDC Page 23